The Enigma symposium 1997
By: Hugh Skillen.
Publisher: H.Skillen
Published: 1997
Place of publication: Pinner
Language: eng
Number of pages: 194
Subjects: World War, 1939-1945 -- Cryptography -- Congresses.; World War, 1939-1945 -- Electronic intelligence -- Great Britain -- Congresses.; World War, 1939-1945 -- Secret service -- Great Britain -- Congresses.